CVE-2025-65922: PLANKA 2.0.0 lacks X-Frame-Options and CSP frame-ancestors headers, allowing the application to be embedded within malicious iframes. While this does ...

Description

PLANKA 2.0.0 lacks X-Frame-Options and CSP frame-ancestors headers, allowing the application to be embedded within malicious iframes. While this does not lead to unintended modification of projects or tasks, it exposes users to Phishing attacks. Attackers can frame the legitimate Planka application on a malicious site to establish false trust (UI Redressing), potentially tricking users into entering sensitive information or credentials into overlaid fake forms. NOTE: this is disputed by the Supplier because "PLANKA uses SameSite=Strict cookies, preventing authentication in cross-origin contexts. No session can be established. No credential interception or unauthorized actions are possible. Browser Same-Origin Policy prevents the parent page from accessing iframe content. Clickjacking is not applicable on the login page. Any credential capture would require attacker-controlled input and user interaction equivalent to phishing. The security outcome depends entirely on the user's trust in the parent page. An attacker can achieve the same effect with a fully fake login page. Embedding the legitimate page adds no risk, as browsers do not show URL, certificate, or padlock indicators in cross-origin iframes."

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

EPSS Probability

0.14%

3.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-1021

References

Timeline

Published: Jan 5, 2026
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2025-65922?

PLANKA 2.0.0 lacks X-Frame-Options and CSP frame-ancestors headers, allowing the application to be embedded within malicious iframes. While this does not lead to unintended modification of projects or tasks, it exposes users to Phishing attacks. Attackers can frame the legitimate Planka application on a malicious site to establish false trust (UI Redressing), potentially tricking users into entering sensitive information or credentials into overlaid fake forms. NOTE: this is disputed by the Supplier because "PLANKA uses SameSite=Strict cookies, preventing authentication in cross-origin contexts. No session can be established. No credential interception or unauthorized actions are possible. Browser Same-Origin Policy prevents the parent page from accessing iframe content. Clickjacking is not applicable on the login page. Any credential capture would require attacker-controlled input and user interaction equivalent to phishing. The security outcome depends entirely on the user's trust in the parent page. An attacker can achieve the same effect with a fully fake login page. Embedding the legitimate page adds no risk, as browsers do not show URL, certificate, or padlock indicators in cross-origin iframes."

How severe is CVE-2025-65922?

CVE-2025-65922 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.14% probability of exploitation in the next 30 days.

How do I fix CVE-2025-65922?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.